/**************************************************************************
 *
 * Copyright (C) 2007 University of California, Los Angeles.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *************************************************************************/

package edu.ucla.cs.typecast.app.auction;

import java.awt.Frame;
import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * A dialog used to collect buyer or seller info at startup.
 */

public class ParticipantInfoDialog extends TextFieldDialog {
	private static final long serialVersionUID = 1L;
	
	public ParticipantInfoDialog(Frame owner, String title) {
		super(owner, title, new String[] { "ID", "Name", "Private Hostname",
				"Private Port", "Public Hostname", "Public Port" },
				new String[] { "1", "Joe Bruin", "localhost", "2001",
						"239.255.10.10", "5265" });
	}

	public String verifyField(String fieldName, String fieldValue) {
		for (String fn : new String[] { "ID", "Private Port", "Public Port" }) {
			if (fieldName.equals(fn) && !isPositiveInteger(fieldValue)) {
				return fieldName + " must be an integer > 0.";
			}
		}

		for (String fn : new String[] { "Name", "Private Hostname",
				"Public Hostname" }) {
			if (fieldName.equals(fn) && isEmpty(fieldValue)) {
				return fn + " cannot be empty.";
			}
		}

		for (String fn : new String[] { "Private Hostname", "Public Hostname" }) {
			if (fieldName.equals(fn)) {
				try {
					InetAddress.getByName(fieldValue);
				} catch (UnknownHostException e) {
					return fn + "\"" + fieldValue + "\"" + "is unknown.";
				}
			}
		}

		return null;
	}

}
